High solids content for improved coating efficiency and reduced VOC emissions.
Excellent UV resistance and long-term color retention in exterior applications.
Good compatibility with common crosslinkers including melamine and polyisocyanates.
Superior gloss development and film clarity in clear and pigmented coatings.
Controlled molecular weight distribution for consistent flow and leveling performance.
Automotive OEM and refinish topcoats.
Industrial maintenance coatings for metal substrates.
Architectural high-performance exterior wall coatings.
Plastic coatings requiring adhesion and flexibility.
Can coatings for beverage and food packaging applications.
| Chemical Type | Thermosetting acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear to slightly hazy, water-white liquid |
| Solvent System | Standard aromatic hydrocarbon blend (e.g., xylene/toluene) |
| Non-Volatile Content | 50–55 wt% (as supplied) |
| Acid Value | 10–15 mg KOH/g |
| Glass Transition Temperature (Tg) | ~65 °C (determined by DSC) |
| Viscosity (25 °C) | 1,200–1,800 cP (Brookfield, spindle #3, 20 rpm) |
Q1: What is the primary function of Dow B-82 Acrylic Resin in coating formulations?
A: Dow B-82 Acrylic Resin functions primarily as a film-forming binder and rheology modifier in waterborne industrial and architectural coatings. It contributes to improved scrub resistance, gloss retention, and low-temperature film formation without requiring high levels of coalescing agents.
Q2: Is Dow B-82 compatible with common pigment dispersions and other acrylic or vinyl acetate-based polymers?
A: Yes, Dow B-82 exhibits good compatibility with standard anionic and nonionic pigment dispersants, as well as with many acrylic emulsions and vinyl acetate copolymers commonly used in interior and exterior paint systems. Compatibility testing under specific formulation conditions is recommended prior to full-scale implementation.
Q3: How should Dow B-82 be incorporated into a waterborne coating system?
A: Dow B-82 is typically added during the let-down stage, after pigment grinding and before addition of thickeners or defoamers. It can be introduced directly or pre-diluted with water or a portion of the formulation water. Gentle mixing at moderate shear is recommended to ensure uniform dispersion without destabilizing the emulsion.
Q4: Does Dow B-82 contribute to VOC reduction in finished coatings?
A: Yes — as a waterborne acrylic resin supplied as a stable aqueous dispersion, Dow B-82 enables formulators to reduce or eliminate volatile organic coalescents and solvents traditionally required for film formation, supporting compliance with low-VOC regulatory frameworks.
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